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编制改进一次二阶矩法计算可靠指标的程序 编制改进一次二阶矩法计算可靠指标的程序(Improve the preparation of first order second moment method to calculate a reliable indicator of the program improve the preparation of first order second moment method to calculate a reliable indicator of the program)

BER simulation: A starter for beginners in digital communications. Really helps alot.

计算chebyshev多项式-计算chebyshev多项式计算chebyshev多项式(Evaluates chebyshev polynomials with vector arguments for vector arguments x)

DCT- discrete cosine transform. compression ratio and psnr value are calculated

With this matlab codes one can simulate BER for BPSK Modulation with added noise in various steps

用matlab 实现海浪的二维和三维模拟(Two and three dimensional simulation of sea waves by MATLAB)

说明：  //实现K-means聚类算法 //包括main.m、distance.m、randCent.m、kMeans.m等四个matlab文件 //以及测试数据集(//Implementation of K-means clustering algorithm // including four matlab files: main.m, distance.m, randCent.m, kMeans.m, etc. //And test data sets)

该程序（基于matlab）为小波变换在数据压缩方面的应用。原理：数据可分为高频部分和低频部分，高频部分反映了细节，而低频部分则反映概貌，故压缩部分应为高频部分。数据经此程序变换后将压缩为原来的一半。(This program (based on matlab) for the wavelet transform applications in data compression. Principle: Data can be divided into high-frequency part and low frequency, high frequency part of the reflection of the details, partly reflecting the profile of low frequency, it should be for the high frequency part of the compression part. Data will be compressed by this program change to the original half.)

very useful try this

power spectral density of signal codes for communication engineering students to understand the concept of statistical analysis.